Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

How to set I/O port as pull-up/pull-down input in SPMC65x MCU?

April 26, 2017input mcu port pull-down pull-up

0

Posted

How to set I/O port as pull-up/pull-down input in SPMC65x MCU?

1 Answer

0

Posted

When an I/O port is in input state, on-chip MOS transistor circuit serves as a 100K weak pull-up/pull-down resistor. But generally speaking, the additional external pull-up/pull-down resistor is needed to ensure the EMC capability of the system. For an input I/O port, it is the built in MOS transistor to make the port input with 100 pull up or pull down.